Spinning machinery.



J. J. OGONNOR.

SPINNING MACHINERY.

APPLICATION FILED MAE.19, i913.

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Patented Oct. 7

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J. J. OGONNOR.

SPINNING MACHINERY.

APPLIOATION FILED MAR.19, 1913.

Patented Oct. 7, 1913.

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' JOHN J. OCONNOR, OF PAWTUCKET, RHODE ISLAND.

SPINNING MACHINERY.

Specification of Letters Patent.

Application filed March 19, 1913.

Patented Oct. 7,1913. Serial No. 755,507.

To all whom it may concern Be it known that 1, JOHN J. OCoNNoR, acitizen of the United States, residing at Pawtucket, in the county ofProvidence and State of Rhode Island,have invented certain new anduseful Improvements in Spinning Machinery, of which the following is aspecification.

My invention relates to improvements in spinning machinery and thepurpose of my invention is to provide a means for varying at will thespeed of the feed and delivery rolls; the ultimate purpose of thevariation of speed being to produce a yarn which will vary in size uponthe same cop or spool so that within certain limits the size of thethread may be changed tov other sizes for any required length. Iaccomplish these purposes by the mechanism shown in the accompanyingdrawings, in which- Figure 1 shows an end view of a spinning frame towhich my device is attached. Fig. 2, a top view showing the rolls uponeach side of the frame and the gearing and driving mechanism thereofwith my device attached. Figs. 3 and t, details of the camsaccomplishing the changes in speed of the rolls. Fig. 5, a side View ofa drawing of the frame with my device attached. Fig. 6, further detailsof my invention showing the operation of the cams and their influence onthe shipper lever.

The same parts are indicated by the same letters throughout the severalviews.

It is a well known fact in the art of spin ning that a change of therelative speed of the delivery and feed rolls results in a change in thethickness of the spun product and various methods of making the changesin the speed of the rolls have been heretofore used. Many of them areused for the production of threads or yarns having thickened portions atregular intervals while some have for their purpose the production ofdifferent sizes at any predetermined intervals, but this latter purposehas heretofore been accomplished, so far as is known to me, by the useof additional rolls or aux iliary roving, while my invention requires nochange in either the rolls or the roving of an ordinary spinning frame.

My invention, in substance, embraces an endless chain carryingdetachable cams which engage a shipper lever operating a belt uponopposed conical pulleys; the cams serving to change the shipper and beltfrom point to point upon the cone pulleys, thus varying the speed of thefeed and delivery rolls which are driven by the cone pulleys.

In Fig. 1, (Z is the end of an ordinary spinning frame; 9 being the copor spool, and t -t the thread which is being spun upon the same. gg areopposed cone pulleys supported by the frame and operated by the belt fwhich is driven by the pulley h and engages the idler pulley z"-z" whichis supported also by the end of the frame. Fixed upon the shafts of thecone pulleys gg are the pinions oo driving respectively the gears o uThe pulley h is driven by the main shaft of the frame.

The gear o through intermediate gears and pinions, not necessary to beshown, operates the delivery rolls t on the right side of the frame andalso through the gears 2fo" and o operate the delivery rolls 2? on theleft side of the frame. The feed rolls 27-6 upon the right and leftsides of the frame, respectively, are operated by the gears ww which arethemselves operated by the cone pulley g through the pinion '0 the gearif, the pinion a and the gear 10 It will thus be seen that the righthand cone 9 operates the delivery rolls tt on bothsides of the machine,while the left hand cone 9 operates the feed rolls tt on bot-h sides ofthe machine. It follows, therefore, on account of the opposition of thecones that as the delivery rolls increase in speed the feed rolls areretarded and vice versa.

Fixed upon the same shaft which drives the gear to, is the sprocketwheel n This through a sprocket chain a e which is shown in Fig. 5,operates the sprocket wheels nn, conveying motion to the sprocket wheels12 and thus to the auxiliary cam chain e-e', which runs from theoverhead sprocket n to the sprocket wheels 91. attached to the arm atwhich is bolted upon the end of the frame 0?. The end cl also carriesthe bracket 0 which has upon it the shipper lever a-a carrying theshipper fork a which operates upon the endless belt The sprocket chainec is adapted to receive throughout its entire length the cams e whichmay be inserted at any point or points upon 6' 6 and which are carriedaround by the latter in its revolution. The direction of the sprocketchain ee is indicated by the arrow. The shipper lever a-a is bentapproximately at right angles and pivoted at the angle upon the pin 6.Connected to y the shipper lever midway between the shipper fork a andthe pivot b is the spring fixed at the other end upon the projection Zattached to the member of the frame (Z, this spring 7' serving normallyto keep the shipper lever and the belt f', in the relative posi tionshown in Fig. 5. It will be seen by an inspection of this figure thatthe cams ec, etc. are of different depths, that is they proj ectoutwardly from the sprocket chain c'e more or less as may be desired.These cams are shown in detail in Figs. 3 and l. the former being a sideview and the latter a back view of the sprocket chain with one camannexed. In these figures ee represent the sprocket chain proper, whilee-e represent a single cam which is capable of being put into a sprocketchain at any one of its cross bars.

Attached to the cam e is a shoe 6@ which is fixed to e by means of abolt and nut 0 The shoe 6 6 serves to preserve the cams from wear and ismade preferably of a harder metal such as steel or the like, and it alsoserves to break the joints between. the cams. The operation of thesecams in the shifting of the belt is as follows :As the chain e e comesdownward bearing its attached cams the latter strike the arm a of theshipper lever and push it downward a distance corresponding to the depthof the cam, thus shifting the belt, f, as shown in Fig. 6, from thesmall toward the large end of thecone pulley g. The belt is maintainedat that position until the cams have entirely passed the lever arm a,when the belt through the agency of the shipper and spring j returns toits original position.

It will be seen from an inspection of Fig. 5 that some of the camsproject farther from the face of the chain than others; these deepercams evidently serving to shift the belt f still farther toward thelarge end of g, and in like manner the belt f may be shifted from thesmall end the entire distance to the large end of the cone pulley g, andmay be kept for any predetermined time at any point between the two endsof the pulley.

It will be remembered that the delivery rolls of the machine 011 bothside are driven by the pulley g and the feed rolls by the op positepulley g. It will thus be seen that by means of the sprocket chain 6,the cams e the shipper lever aa, the attached shipper fork a and thepulleys 9-9, the speed of the feed and delivery rolls may be changed atwill between the limits fixed by the dimensions of the cone pulleys gg.It is further apparent that the changes of speed of the feed anddelivery rolls are inverse to each other, that is to say, as the feedrolls are retarded, the delivery rolls are increased in speed and viceversa. In practice, however, itis impracticable to run the feed rolls ata faster rate than the delivery rolls because if this were "done theroving would loop or accumulate between the rolls and become entangledwithin the machinery. By the use of my device neither the feed ordelivery rolls are stopped at any part of the process of spinning, andno additional or auxiliary roving is required, as the effect aimed at bymy invention is secured with the usual supply of roving and without anyauxiliary or additional rolls over and above those found on the ordinaryspinning frame. The roving being of a fixed and definite size, it isclear to one skilled in the art of spinning that as the speed of thedelivery 7 rolls is increased beyond that of the feed rolls the rovingor sliver is made more attenuated, and as the speed of the cops orbobbins -g is uniform, it is evident that a thinner or finer thread willbeproduced. On the other hand, it is also apparent that if the speed ofthe delivery rolls is'retarded until it is the same as that of the feedrolls, the maximum size of thread will be spun upon the cops or bobbinsgq.

It follows from the foregoing description that any given size of threadwithin certain limits, as before stated, may by means of my device bespun upon the same cop or bobbin and that the length ofthe thread spunof any given size within the capacity. of the cone pulleys maybeanything that the operator desires.

It-is not. absolutely necessary to use two opposed cone pulleys in theoperation of my invention; a single cone pulley actuating the feedrolls, the delivery rolls being run by an ordinary pulley the two havinga common belt and using a sliding idler suitably weightechinay be usedto accomplish substantially the same results; but it is evident thatthis is merely a variation of my invention and involves the sameprinciples; and I find in practice that duplicate opposed pulleys aresimpler in construction and adjustment, and produce more satisfactoryresults.

Having now described my invention,

what I claim and desire to secure Letters Patent is V 1. In a spinningframe a device for varying the relative speeds of theQfeed and de-'livery rolls comprising a cone pulley operating the feed rolls; anopposed cone pul-' ley operating the delivery rolls; an endless beltconnecting said cone pulleys with each other and with a driving pulleyon the main shaft of the frame; a shipper lever adapted to move saidbelt to any portion of the surface of said cone pulleys; an endless 'T Ichain operated by the driving shaft of the frame; and cams mounted uponsaid chain and arranged to engage and operate the shipper lever. atpredetermined intervals, substantially as specified. V

2. In a mechanism for varying the relative speed of the feed anddelivery rolls of a spinning frame, the combination of an endless chaindriven by the driving shaft of the frame; cams varying in depth mountedupon said chain; a shipper lever actuated by said cams the extent ofmovement of said shipper lever being determined by the depth of saidcams; a pair of opposed cone pulleys one of them operating the feedrolls and the other the delivery rolls of the frame; an endless beltconnecting said cone pulleys with each other and With a driving pulleyfixed on the main shaft of the frame and transmitting motion to saidbelt, said belt being capable of being changed in position upon thesurfaces of said cone pulleys by means of said shipper lever; and feedand delivery rolls actuated by said cone pulleys substantially as setforth.

In testimony whereof I aflix my signature in presence of tWo Witnesses.

JOHN J. OCONNOR.

Witnesses:

Rosoon M. DEXTER, EDITH M. BROMLEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. 0.

